Hi,
I've been running against openstack-dev (master branch) using the
stackforge/networking-ovs-dpdk master branch (OVS GIT TAG
1e77bbe565bbf5ae7f4c47f481a4097d666d3d68), using the single-node local.conf
file on Ubuntu 15.04. I've had to patch a few things to get past ERRORs during
start:
- disable/purge apparmor
- patch ovs-dpdk-init to find correct qemu group and launch ovs-dpdk with sg
- patch ovs_dvr_neutron_agent.py to change default datapath_type to be netdev
- modify ml2_conf.ini to have [ovs] datapath_type=netdev
- create a symlink between /usr/var/run/openvsitch and /var/run/openvswitch
Everything appears to be working from a horizon point of view, I can launch
VMs, create routers/networks, etc.
However, I've tried to figure out how to get two vms using ovs-dpdk
(ovs-vswitchd --dpdk ...) to be able to ping eachother (or do anything network
related for that matter - like get an ipv4 address (via dhcp), ping the
gateway/router, etc), but to no avail.
I'm wondering if there is a flow that is bogus as when I dump the flows:
# ovs-ofctl dump-flows br-int
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=5234.334s, table=0, n_packets=0, n_bytes=0,
idle_age=5234, priority=3,in_port=2,dl_vlan=2001 actions=mod_vlan_vid:1,NORMAL
cookie=0x0, duration=5246.680s, table=0, n_packets=0, n_bytes=0, idle_age=5246,
priority=2,in_port=1 actions=drop cookie=0x0, duration=5246.613s, table=0,
n_packets=0, n_bytes=0, idle_age=5246, priority=2,in_port=2 actions=drop
cookie=0x0, duration=5246.744s, table=0, n_packets=46828985,
n_bytes=2809779780, idle_age=0, priority=0 actions=NORMAL cookie=0x0,
duration=5246.740s, table=23, n_packets=0, n_bytes=0, idle_age=5246, priority=0
actions=drop cookie=0x0, duration=5246.738s, table=24, n_packets=0, n_bytes=0,
idle_age=5246, priority=0 actions=drop
There is only one flow that ever gets any packets, and it gets millions of them
apparently. Viewing the number of packets sent on an interface (via ifconfig)
doesn't have any interfaces with near that many packets.
Dumping ports doesn't show any stats near those values either:
===
ovs-ofctl dump-ports br-int
OFPST_PORT reply (xid=0x2): 7 ports
port 6: rx pkts=0, bytes=?, drop=?, errs=?, frame=?, over=?, crc=?
tx pkts=636, bytes=?, drop=0, errs=?, coll=?
port 4: rx pkts=?, bytes=?, drop=?, errs=?, frame=?, over=?, crc=?
tx pkts=?, bytes=?, drop=?, errs=?, coll=?
port LOCAL: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
tx pkts=874, bytes=98998, drop=0, errs=0, coll=0
port 1: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
tx pkts=874, bytes=95570, drop=0, errs=0, coll=0
port 5: rx pkts=?, bytes=?, drop=?, errs=?, frame=?, over=?, crc=?
tx pkts=?, bytes=?, drop=?, errs=?, coll=?
port 2: rx pkts=0, bytes=0, drop=0, errs=0, frame=0, over=0, crc=0
tx pkts=874, bytes=95570, drop=0, errs=0, coll=0
port 3: rx pkts=?, bytes=?, drop=?, errs=?, frame=?, over=?, crc=?
tx pkts=?, bytes=?, drop=?, errs=?, coll=?
===
One thing I find odd is that showing the br-int bridge (and all the other
bridges for that matter) seem to show the port_down for almost all the
interfaces:
===
ovs-ofctl show br-int
OFPT_FEATURES_REPLY (xid=0x2): dpid:9ab69b50904d n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: output enqueue set_vlan_vid set_vlan_pcp strip_vlan mod_dl_src
mod_dl_dst mod_nw_src mod_nw_dst mod_nw_tos mod_tp_src mod_tp_dst
1(int-br-em1): addr:0a:41:20:a8:6b:50
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
2(int-br-p6p1): addr:2a:5d:62:23:0a:60
config: 0
state: 0
speed: 0 Mbps now, 0 Mbps max
3(tapa32182b8-ee): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
4(qr-a510b75f-f7): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
5(qr-d2f1d4a0-a9): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
6(vhucf0a0213-68): addr:00:00:00:00:00:00
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
LOCAL(br-int): addr:9a:b6:9b:50:90:4d
config: PORT_DOWN
state: LINK_DOWN
current: 10MB-FD COPPER
speed: 10 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
===
In fact, trying to bring them up (i.e. ovs-ofctl mod-port br-int 3 up) does not
change anything for any of t
